“It has been mixed with Joe. I’ve seen some good stuff and I’ve seen stuff which hasn’t been so good. I couldn’t say all of it has been great but I think Joe would be the first one to admit that as well.”

Moyes’ blast follows Pep Guardiola’s stinging criticism of Hart’s use of the ball, which saw him bombed out at the Etihad at the start of last season. Hart has been exposed by poor West Ham defending yet Moyes does not see that as a valid excuse.

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He said: “I had Jordan Pickford at Sunderland last year and he saved us a lot of goals.”

If Adrian, 30, impresses today — or against Arsenal in the League Cup on December 19 — Moyes admits he will have no qualms giving him the nod ahead of Hart.

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Moyes believes City are not too far away from being as good as the team Guardiola had at Bayern Munich, which the Scot rates as the best side he has faced as a manager.

He was in charge of Manchester United when they were beaten by Guardiola’s Germans in the Champions League quarter-finals in 2014.

Moyes said: “Over the years I’ve faced some really good club sides. Arsenal was really difficult, Liverpool, when they had Gerrard and Torres, were a really good team, and Manchester United with Scholes.

“My first coming together with Pep at that level was in the Champions League. Bayern were very good and City are close to that team. They have something going.”